I will setup a USB key to install Mavericks.
I would like to know the needed size of the partition to install Mavericks.
Partition Size Needed for Mavericks Install Disk
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Best Answer
For me, the Mavericks partition uses 5.36 GB (5,355,311,104 Bytes) (per Disk Utility). That's 4.98 GB in old-school "binary" types like me (4.98 GiB).
This is subject to change given partition overhead, block size, a Mavericks version. So I'd allocate a little more to the partition.